Invention Grant
- Patent Title: Particle-dispersed polyimide precursor solution, method for producing porous polyimide film, and porous polyimide film
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Application No.: US17146436Application Date: 2021-01-11
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Publication No.: US11680140B2Publication Date: 2023-06-20
- Inventor: Hajime Sugahara , Hidekazu Hirose , Kosaku Yoshimura , Tomoya Sasaki , Yasunobu Kashima , Kosuke Nakada , Tomoyo Okubo
- Applicant: FUJIFILM Business Innovation Corp.
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Business Innovation Corp.
- Current Assignee: FUJIFILM Business Innovation Corp.
- Current Assignee Address: JP Tokyo
- Agency: JCIPRNET
- Priority: JP 2020148427 2020.09.03
- Main IPC: C08G73/10
- IPC: C08G73/10 ; C08J9/26
Abstract:
A particle-dispersed polyimide precursor solution contains: a polyimide precursor consisting of a polymer of a tetracarboxylic dianhydride and a diamine containing a fluorene-based diamine having a fluorene skeleton; particles; and an aqueous solvent containing water.
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